Type-writing-machine erasing-plate



(No Model.)

A. s. JOHNSON. TYPE WRITING MACHINE ERASING PLATE. No. 602,559. Patented Apr. 19,1898.

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UNITED STATES PATENT OFFICE.

ANSON S. JOHNSON, OF ITHAOA, NEW YORK.

TYPE-WRlTlNG-MACHINE ERASlNG-PLATE.

SPECIFICATION forming part of Letters Patent No. 602,559, dated April 19, 1898. Application filed llllay 26,?1897. Serial No. 638,273. (No model.)

To coZZ whom it may concern.-

Be it known that I, ANSON S. J OHNSON, of

' Ithaca, in the county of Tompkins and State of New York, have invented certain new and useful Improvements in Type-Writer Attachments; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to type-writer attachments; and its object is to provide an attachment or eraser bed or plate which may be used as a platen upon which to erase errors made in writing.

My invention consists of certain novel features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a portion of a typewriter, showing my invention applied. Fig. 2 is a bottom perspective view thereof; and Fig. 3 is a sectional view through the roller and the middle of my invention, showing the position assumed by the various folds of paper.

The numeral 1 indicates a piece of sheetbrass or other convenient metal preferably curved to a diameter a trifle greater than that of a type-writer roll. Forked arms 2 are provided with feet 3, adapted to rest upon the parallel rods 4 4 of the type-writer carriage. These arms may be used upon one or both ends, and the shape of the feet depends upon the style of machine to which it is desired to attach my device.

The body of my device is held free of the type-writer roll or the paper thereon. The manner in which my device is used is as follows:

IVhen an error is made and a correction necessary, the type-writer roll 5 is turned until the words or letters to be corrected are brought on the upper side of the roll in the same manner as though the correction were to be made in the ordinary way. My device is then set in place upon the machine, the feet resting on the parallel rods and the under sheet laid over and the erasure made upon the hard surface of the body of my device. The device is then removed and the piece upon which the erasure has been made and its corresponding sheet of carbon-paper is laid next to the roll. The device is then placed upon the machine over these papers and the second sheet drawn therethrough and erased in the same manner as the first. This process is repeated throughout the copies.

It is plain that by this arrangement the'erasures are made without blurring the work or injuring the carbon beneath. I thus provide a simple and efiicient device for permitting erasures to be made upon type-writing copies without removing the same from the machine that is cheap in construction and easy of operation.

I make no claim to a mere shield or card which is slipped between the sheets of paper on the roll and rests on and is supported by the roll itself or by the paper thereon.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. The correction plate or bed for typewriters, consisting of the segment of a hollow metallic cylinder, and legs connected to said bed-plate extending to the bars of a typewriter carriage, whereby the plate may be supported in proximity to but out of contact with the roll and afford a convenient table for corrections, substantially as described.

2. The correction bed or plate for typewriters, consisting essentially of a thin plate to extend in proximity to the type-writer roll, and supporting-legs connected to said plate and adapted to bear on some part of the typewriter other than the roll, whereby a convenient correction-bed is aiforded out of contact with the sheets carried by the type-writer roll, substantially as described.

3. The correction-bed for type-writers consisting of a curved metallic plate, and forked legs projecting from the corners thereof in position to bear on the parallel bars of a typewriter carriage, substantially as described.

4. The combination with the parallel bars of a type-writing machine, of an erasing-table consisting of a curved plate, and legs connected to said plate and resting on said bars to hold the plate in proximity to but out of contact with the upper surface of the typewriter roll, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ANSON S. JOHNSON.

WVitnesses:

B. L. JOHNSON, C. W. MAJOR. 

